airHome 400
Home AC is easy to use, makes everyday life more convenient, and comes with built-in self-maintenance technology that helps improve the unit’s long-term performance. airHome is the AC for those who don’t want to think about AC.
Vector DC Inverter Technology
Our Cascade Vector DC Inverter system is equipped with a microchip to control compressor speed. A split impeller with displaced electric poles allows suppression of electromagnetic noise and optimizes energy efficiency at low speed.
With inverter technology, an air conditioner cools at full capacity on start-up, then automatically slows down and runs at minimum capacity to keep the room temperature at a comfortable level. Non-inverter models can only operate with simple on-off controls. Trying to maintain the desired temperature by switching on and off repeatedly consumes much more electricity and results in greater temperature fluctuations.
Premium benefits
Quiet mode
Specially curved fan blades reduce the noise of the fan cutting air at lower speeds.
Temperature control 0.5°C
Set the temperature in 0.5°C steps
Multipletimers
6x on/off and temperature settings for every day of the week (using airCloud Home). Set a specific time interval for off, up to 12 hours
Save your favorite settings
Quickly activate your most used combination of mode, temperature and fan speed with a dedicated button on the remote control
Adjust the temperature when you get home or leave the house
Use the airCloud Home smartphone app to set up location awareness and temperature profiles, for example, detecting when you’re on your way home and automatically adjusting the temperature ready for your arrival.
With the airCloud Home app, you can also connect to your smart speaker (compatible with Amazon Echo and Google Home), use the weekly schedule and timer functions, and see how much energy has been consumed with the built-in energy cost estimator.


3 times better at maintaining AC performance
Over time, dust and dirt can build up in the AC reducing the amount of air that can flow through it and making it less powerful over time.
Hitachi FrostWash technology helps maintain AC performance for years to come by freezing dust and dirt, melting it, and washing it away. Our tests show that systems with FrostWash are 3 times better at maintaining airflow performance than those without this technology.
Stop the causes of AC odors
Whenever the unit is switched off, the mold protection function automatically blows air through the internal components to prevent mold growth – the main cause of those unpleasant odors.


Japanese quality, built to last
Heat shock and freezing, extreme humidity, pouring rain, power surges, lightning strikes, impacts and more… every air conditioner we sell has been tested to the extreme. Plus, our unique SafeGuard system combines electrical and mechanical systems to protect your outdoor unit from extreme weather and voltage fluctuations. These protections include a 3-minute delay circuit to prevent damage caused by multiple quick restarts in the event of power outages, an ODU valve cover to safely channel water and condensation away from the outdoor unit, rust-proof paint and heat fins, and a flame-retardant metal electrical enclosure to protect the electronics inside the outdoor unit.
Helps purify indoor air
Combining 3 different air purification technologies for increased efficiency against pollutants including viruses and bacteria and even odors. The pre-filter, air purifying filter and heat exchange cleaning agent work together with up to 99.9% effectiveness against viruses, including SARS-CoV-2, with up to 99.0% effectiveness on bacteria.



